172099-36-4

Upstream product

• 2611-38-3 3β-acetoxy-5α-pregn-16-ene-12,20-dione 
• 61235-80-1 (20R)-12-Oxo-5α-pregnan-3β,20-diol-3-acetat 
• 58479-61-1 tert-butylchlorodiphenylsilane 
• 29599-32-4 (3R,3aS,5aS,5bR,7aS,9S,11aS,11bS,13aR)-9-Hydroxy-3,11a-dimethyl-hexadecahydro-2-oxa-pentaleno[1,6a-a]phenanthrene-1,13-dione 
• 27957-55-7 C₂₅H₄₀O₅ 
• 29599-31-3 Acetic acid (3R,3aS,5aS,5bR,7aS,9S,11aS,11bS,13aR)-3,11a-dimethyl-1,13-dioxo-hexadecahydro-2-oxa-pentaleno[1,6a-a]phenanthren-9-yl ester 
• 172099-29-5 C₂₅H₃₈O₅ 
• 19459-56-4 C₂₅H₃₆O₅ 
• 172099-30-8 (3S,5S,8R,9S,10S,12R,13S,14S,17S)-3-(tert-Butyl-diphenyl-silanyloxy)-17-((R)-1-hydroxy-ethyl)-13-hydroxymethyl-10-methyl-hexadecahydro-cyclopenta[a]phenanthren-12-ol 

Downstream Products

• 171525-83-0 (4aR,6aS,6bR,8aS,10S,12aS,12bS,14aS)-10-(tert-Butyl-diphenyl-silanyloxy)-4,12a-dimethyl-14-oxo-4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14-hexadecahydro-2-oxa-indeno[1,7a-a]phenanthrene-3-carbaldehyde 

Relevant academic research and scientific papers

Synthesis of a C14′, 15′ dihydro derivative of the south hexacyclic steroid unit of cephalostatin 1. Part I: Regiospecific Rh[II]-mediated intermolecular oxygen alkylation of a primary neopentyl alcohol

Hecogenin acetate 5 was converted to an intermediate suitable for the construction of a C14′, 15′ dihydro derivative of the "South" hexacyclic spiroketal of cephalostatin 1 1. The key transformations include: (i) proximal functionalization of t